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304V

Tekmar Zone Valve Control Four Zones with Priority

The Zone Valve Control 304V connects up to four thermostats and operates zone valves to provide heating to a zoned hydronic heating system. The 304V operates a system pump whenever a zone valve opens. Zone 1 can operate either a zone valve or a circulator to provide heat to an indirect domestic hot water tank with optional priority over zones 2 through 4. The 304V includes optional exercising to prevent circulator seizure when not in use, and optional post purge operation of the domestic hot water tank to maximize energy savings. The 304V provides a RoomResponse™ signal to modulating-condensing boilers to optimize comfort while improving boiler efficiency.


Features

  • Compatible with 2, 3 and 4-wire zone valves, unlimited zone expansion

  • Pump exercising, post purge

  • Zone priority, priority override

  • RoomResponse™ signal, compatible with all low voltage thermostats

Factory Direct
$ 186.49 $ 186.49

30-day money back guarantee
  • Manufacturer
  • Ambient conditions
  • Approvals
  • Enclosure
  • Control
  • Warranty
  • Pump relays
  • Mod boiler output
  • DHW end switch
  • Boiler XX end switch
  • Transformer
  • Fuses
  • Zone valve end switch
  • Zone valve outputs
  • Control load
  • Shipping Weight
  • Dimensions
  • Voltage
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Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days
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Manufacturer: Tekmar
Ambient conditions: Indoor use only, 32 to 122°F (0 to 50°C), RH ?90% non-condensing
Approvals: CSA C US
Enclosure: Cover: ABS plastic, Base: galvanized steel, NEMA type 2
Control: Microprocessor control. This is not a safety (limit) control.
Warranty: Limited 3 Year Warranty
Pump relays: 230 V (ac), 5 A, 1/3 hp
Mod boiler output: 0-10 V (dc) 500 ? min load impedance / 4-20 mA 1 k? max load impedance
DHW end switch: 24 V (ac), 5 A
Boiler XX end switch: 24 V (ac), 5 A
Transformer: 40 VA, expandable to 80 VA with additional transformer M3069 (sold separately)
Fuses: T5A 250 V slow blow, two spare fuses included
Zone valve end switch: 24 V (ac)
Zone valve outputs: 24 V (ac), 2 A max per output
Control load: 7 VA
Shipping Weight: 5.0 lb. (2250 g)
Dimensions: 8-3/16" H x 10-11/16" W x 2-3/8" D (208 x 271 x 60 mm)
Voltage: 115 V (ac) ±10%, 60 Hz, 20 A
Documents
Tekmar 304V Installation Manual Tekmar 304V Submittal Tekmar RoomResponse Brochure

Tekmar Zone Valve Control Four Zones with Priority